GTA V did not only improve its story telling and gameplay but also introduced 3 playable characters for the first time in the series history. (onpause.org)
But most editing services just clean up the writing without actually improving the story, in which case the money could probably be used in more beneficial ways. (creativindie.com)
Even more importantly, we have to provide feedback that helps the author improve their story, not the story we'd write. (jamigold.com)